So I'm planning on buying a 2002 wrx wagon with 170,000 miles on it for 6000 my only concern was when I was rolling and trying to get down into first gear it would grind so hard and wouldn't get into the gear until i was at a complete stop is this a frequent problem on these with the transmission or what do you think it is? Also is that even a good deal I guess they put a new engine in it about a year ago?

I'd agree with that. I drove a 5 speed g5 and it did the same thing, wouldn't go into 1st until just about stopped. My WRX now will grind if I try to put it in reverse while still moving as well, never tried 1st there's no need. Probably a safety thing so you don't put it in 1st at a higher speed on accident. Why would you need to put it 1st gear before you're almost stopped?

I believe you have to be below like 8mph or so before, I have heard of people doing it a 15mph, but it's all hear say...use you brakes to slow down, you'll be thankful in the end because brakes are cheaper than a trans. Yeah i'd also HIGHLY recommend changing the gear oil in the trans and the rear diff as these items get over looked all the time.